Mun Siong Engineering (SGX:MF6) Operating Income: S$-2.07 Mil (TTM As of Jun. 2026)

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What is Mun Siong Engineering Operating Income?

Mun Siong Engineering SGX:MF6 Operating Income is S$-2.07 Mil as of Jun. 2026. The stock has 7 warning signs investors should review.

Mun Siong Engineering's Operating Income for the six months ended in Jun. 2026 was S$-1.27 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Jun. 2026 was S$-2.07 Mil.

Warning Sign:

Mun Siong Engineering Ltd has never been profitable in the past 3 years. It lost money every year.

Operating Margin % is calculated as Operating Income divided by its Revenue. Mun Siong Engineering's Operating Income for the six months ended in Jun. 2026 was S$-1.27 Mil. Mun Siong Engineering's Revenue for the six months ended in Jun. 2026 was S$29.87 Mil. Therefore, Mun Siong Engineering's Operating Margin % for the quarter that ended in Jun. 2026 was -4.25%.

Mun Siong Engineering's 5-Year average Growth Rate for Operating Margin % was 0.00% per year.

Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition. Mun Siong Engineering's annualized ROC % for the quarter that ended in Jun. 2026 was -6.16%. Mun Siong Engineering's annualized ROC (Joel Greenblatt) % for the quarter that ended in Jun. 2026 was -5.76%.


Mun Siong Engineering  (SGX:MF6) Operating Income Explanation

1. Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition.

Mun Siong Engineering's annualized ROC % for the quarter that ended in Jun. 2026 is calculated as:

ROC % (Q: Jun. 2026 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Dec. 2025 ) + Invested Capital (Q: Jun. 2026 ))/ count )
=-2.538 * ( 1 - 0% )/( (41.738 + 40.615)/ 2 )
=-2.538/41.1765
=-6.16 %

where

Note: The Operating Income data used here is two times the semi-annual (Jun. 2026) data.

2. Joel Greenblatt's definition of Return on Capital:

Mun Siong Engineering's annualized ROC (Joel Greenblatt) % for the quarter that ended in Jun. 2026 is calculated as:

ROC (Joel Greenblatt) %(Q: Jun. 2026 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Dec. 2025  Q: Jun. 2026
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=-1.68/( ( (29.782 + max(-3.076, 0)) + (28.574 + max(-2.358, 0)) )/ 2 )
=-1.68/( ( 29.782 + 28.574 )/ 2 )
=-1.68/29.178
=-5.76 %

where Working Capital is:

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(16.951 + 0.142 + 1.714) - (17.527 + 0 + 4.356)
=-3.076

Working Capital(Q: Jun. 2026 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(14.848 + 0.222 + 0.105) - (12.577 + 0 + 4.956)
=-2.358

When net working capital is negative, 0 is used.

Note: The EBIT data used here is two times the semi-annual (Jun. 2026) EBIT data.

3. Operating Income is also linked to Operating Margin %:

Mun Siong Engineering's Operating Margin % for the quarter that ended in Jun. 2026 is calculated as:

Operating Margin %=Operating Income (Q: Jun. 2026 )/Revenue (Q: Jun. 2026 )
=-1.269/29.866
=-4.25 %

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

4. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Operating Income growth rate using Operating Income per share data.


Be Aware

Compared with a company's EBITDA margin, Operating Margin can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).

If a company is facing competition, its Operating Margin may decline. Often the Operating Margin declines well before the company's revenue or even profit decline. Therefore, Operating Margin is a very important indicator of whether the company is facing problems.

For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokia's Operating Margin had already been in decline since 2002, although its earnings per share were still rising. Investors who paid attention to Operating Margin would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).

Therefore, Operating Margin is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.


Mun Siong Engineering Operating Income Related Terms


Mun Siong Engineering Operating Income Historical Data

* Premium members only.

The historical data trend for Mun Siong Engineering's Operating Income can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Mun Siong Engineering Operating Income Chart

Mun Siong Engineering Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Income
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.06 0.53 -3.43 -5.97 -4.62

Mun Siong Engineering Semi-Annual Data
Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25 Jun26
Operating Income Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -1.70 -4.35 -4.25 -0.80 -1.27

Mun Siong Engineering Operating Income Calculation

Operating Income, is the profit a company earned through operations. All expenses, including cash expenses such as cost of goods sold (COGS), research & development, wages, and non-cash expenses, such as depreciation, depletion and amortization, have been deducted from the sales.

Operating Income for the trailing twelve months (TTM) ended in Jun. 2026 adds up the semi-annually data reported by the company within the most recent 12 months, which was S$-2.07 Mil.

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about Operating Income →
What does a Operating Income of S$-2.07 Mil mean?
Mun Siong Engineering (SGX:MF6) has a Operating Income of S$-2.07 Mil as of Jun. 2026. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Mun Siong Engineering and its competitors.
Is Mun Siong Engineering's Operating Income too high?
Mun Siong Engineering's current Operating Income is S$-2.07 Mil.
How does Mun Siong Engineering's Operating Income compare to PWR and FIX?
Mun Siong Engineering's Operating Income of S$-2.07 Mil can be compared against companies in the Construction industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Income for a Construction company?
A good Operating Income depends on the Construction industry context. However, Operating Income should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Operating Income mean?
A high Operating Income can signal that a stock is expensive relative to its fundamentals. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Mun Siong Engineering and its competitors. Mun Siong Engineering's current Operating Income is S$-2.07 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Mun Siong Engineering stock overvalued right now?
Based on GuruFocus' analysis, Mun Siong Engineering (SGX:MF6) is currently considered Fairly Valued. The stock's GF Value™ is S$0.03, compared to a current price of S$0.03 — trading 6.7% below its estimated fair value. The current Operating Income is S$-2.07 Mil. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Income calculated?
Operating Income is calculated from a company's financial statements. For Mun Siong Engineering (SGX:MF6), the current Operating Income is S$-2.07 Mil as of Jun. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Mun Siong Engineering Business Description

Address 26 Gul Way, Singapore, SGP, 629199
Mun Siong Engineering Ltd is engaged in mechanical engineering, provision of specialised services, and investment holding as an integrated engineering solutions provider. The company specializes in turnaround services, turnkey delivery, and EPC (Engineering, Procurement and Construction) projects, serving industries such as oil and gas, petrochemicals, energy, and pharmaceuticals. It offers end-to-end capabilities from engineering design and fabrication to construction and maintenance, and provides services including high pressure water jetting, retubing of heat exchangers, mechanical decoking/air pigging, rotating equipment services, plugging of heat exchangers (Conco Systems), and maintenance and repair of waterous pumps. The company generates the majority of its revenue from Singapore.